Tag Archives: White-rumped Sandpiper

One of the most popular Birds on Tap – Roadtrips! is our annual “Fall Ducks and Draughts.” One of the original two BoT – Roadtrips! back in 2015, this popular outing visits Sabattus Pond near the peak of fall waterfowl migration with our partners, The Maine Brew Bus.

It rarely disappoints, but today it far surpassed expectations! We began at the south beach, where an American Coot was a surprise. However, more surprising was the flock of shorebirds littered around the south end. While many of the 30 or so Dunlin took off and kept going, about 10 White-rumped Sandpipers returned and landed right in front of the group, no more than about 30 feet away! We were able to carefully study the progression from juvenile to 1st winter plumage, with most individuals, such as these two, mostly still in colorful juvenile plumage (with one bigger, grayer Dunlin in the background).

With our focus back on waterfowl, we began to sort through the masses, starting with 6 spiffy Northern Pintails joining the Mallards nearby, while one lone female Green-winged Teal quickly paddled away. 18 Ring-necked Ducks loafed just a little further offshore, providing a good intro to the genus Aythya. Sabattus Pond is famous for its legions of Ruddy Ducks, and this cute little “stiff tail” was out in full force. We had a couple of hundred nearby, but a distant raft of many hundreds remained just a little too far to enjoy. We also began our comparison of Greater and Lesser Scaup, and took a moment to learn about the Chinese Mystery Snail that makes up a large percentage of the food source of all of the diving ducks we were here to enjoy.

I had set the over/under for waterfowl species at 13.5, and our list quickly began to grow: Buffleheads, Hooded Mergansers a’plenty, but surprisingly only one Common Merganser and a mere three Canada Geese. American Black Ducks and a single hen American Wigeon made for a tally of 13 species of waterfowl; just falling short of covering the spread…in part because we never did make it to our third stop!

Over at Martin’s Point Park on the southwest side of the pond, we worked the dabbling ducks and enjoyed stunning Hooded Mergansers. Then, I finally had a nice, close group of the two scaup species in perfect light to give us a lesson in how to identify this challenging species-pair.

We began to walk closer, I began the lecture, and then I heard a call note from the trees that stopped me dead in my tracks. It was not a Yellow-rumped Warbler – the only expected warbler species at this season – and it’s sharp tone was very suggestive. I knew it wasn’t supposed to be here, whatever it was, and my suspicions of its identity were soon proven correct when a gorgeous Yellow-throated Warbler popped out!

Sticking close to the trunk of some large Eastern White Pines, it foraged within a small mixed-species foraging flock of Black-capped Chickadees, Tufted Titmice, White-breasted Nuthatches, and Golden-crowned Kinglets before eventually disappearing towards the neighborhood.

This is a real rarity in Maine, and because of the white in the front of the supercilium, we know it is of the interior subspecies albilora, and therefore not likely the result of the recent storm system. While there was unprecedented three together on Monhegan earlier in the month, this is quite the rarity, especially so far inland, and especially in Androscoggin County (I couldn’t help but wonder if there has ever been a record of this species anywhere in the county).

It was truly hard to leave the pond today, and I of course couldn’t help but wonder what was around the next corner, but it was time to switch gears, turn our attention to Dawn – our driver and beer guide today – and make our way over to Baxter Brewing Company, you know, to celebrate our vagrant warbler discovery!

At Baxter, housed in one of the beautifully restored mills down by the Androscoggin River, we enjoyed five samples of their most popular beers. We learned about their philosophy and history – including the noteworthy fact that they were the first 100% canning brewery in Maine – and sampled some of their best selling beers, such as Pamola pale, Tarnation lager, Per Diem stout, and the venerable Stowaway IPA. We also sampled Ceremony Green Tea IPA which surprised a lot of people and showed off the creativiTEA (sorry, I couldn’t help myself) of the brewery.

We stepped outside of the brewery and were once again greeted by the local Peregrine Falcon atop the steeple of the Franco-American Heritage Center. After a few minutes of enjoying it through the scope, we hit the road, and discussed the beers we had just sampled. People’s favorites were rather evenly divided, aligning with their preferred style of beer, showing that Baxter really does offer something for everyone.

We followed the Androscoggin River towards the coast, and soon arrived at Maine Beer Company. MBC needs no introduction – at least if you are into IPAs or hoppy pales – but with so many folks on the trip today from “away” and/or making their first visit to this popular destination, we started things off with none other than their Peeper – their first brew that got it all started.

Spenser came out to introduce the beers and tell us all about how MBC is dedicated to “do(ing) what’s right.” And that philosophy transcends the beer.

They graciously offered everyone a choice of their next samples (I of course followed Lunch with Another One) and then Spenser really rolled out the red carpet for us, taking the group on a rare behind-the-scenes tour of their brewhouse…including a sneak peek at the massive new expansion that is underway. Clearly, Spenser’s excitement was evident and the group came out of this special tour absolutely bursting with MBC enthusiasm, and lots of promises to be back soon.

Thirteen species of waterfowl, many up close and personal. A most-unexpected rarity that no one in the group had seen in Maine before – and for some, a “life bird.” Urban Peregrine Falcon. Baxter Brewing Co and Maine Beer Company. Yeah, this is what Birds on Tap – Roadtrips are all about!

Jeannette and I spent our summer vacation in the neighboring Province of New Brunswick. For far too long, we have been saying we needed to get to the head of the Bay of Fundy in August, so this year we finally made it happen.

It’s a beautiful area, and August is a great time of year to visit the Maritimes. However, our primary motivation wasn’t the scenery, the weather, or even the poutine. We were here to see one of the great natural spectacles of the entire region: the fall migration of the Semipalmated Sandpiper.

Up to 75% of the world’s population of this small shorebird (“peep”) passes through the Bay of Fundy each fall, stopping to feed and fuel up on the region’s immense mudflats, with recent estimates of several hundred thousand birds. With that Bay’s 40-foot tides and mudflats of over a mile wide, “Semi-Sands” find a lot of foraging habitat, and a lot of food. In particular, a species of mudshrimp that can be found in incredible densities of 60,000 per square meter! Along with a nutrient-rich biofilm on the mudflats’ surface, Semi-Sands can put on enough fat reserves to fuel a three-day non-stop flight to their wintering areas in Northern South America. (For more information about the region, including a map and components of the food chain, I highly recommend the Bay of Fundy Mudflats website).

While “flocks of over 100,000” are rare these days, flocks of 50,000 or more can be encountered, ebbing and flowing with each change in the wind and arrival and departure of flocks. This wonder of the avian world, a mere day’s drive away, is something we needed to do. And with the continued decline of Semipalmated Sandpipers – and sadly, most other shorebirds – we could not wait any longer.

We based our stay of three days in Sackville, a charming little town with surprisingly great restaurants and a remarkable downtown nature preserve. From our motel here, we drove the short distance to Johnson’s Mills twice each of our two full days of birding here – once each on the morning high to outgoing tide, and once each on the incoming to high tide in the evening.

Nature Conservancy Canada has an Interpretive Center on the shores of their reserve, a great place for viewing shorebirds or receiving information about the best current location of observation. Mostly, we spent our time nearby, usually by walking just a short distance south of the center.

And it was truly incredible. I am to come up with the words to describe it. It was, literally, awesome. And there is no way photos can do it justice, either. I did post a few phone-scoped videos on our store’s Facebook page that might help capture the scene a little, but I’ll just let these photos tell as much of the story here as they can.

Both days, we then visited the Sackville Waterfowl Park. This wonderful little gem, with entrances all around downtown, features managed wetlands that was chock full of birds. We had mixed-species foraging flocks of migrant warblers at the edge, roosting Greater and Lesser Yellowlegs wherever they could find some open mud, and lots of ducks – including at least 6 family groups of regionally-very-uncommon Gadwall.

And lots of other ducks, like American Wigeon.

Roosting Greater and Lesser Yellowlegs.

On our fourth day, we spent the high tide at Mary’s Point, on the other side of the bay, for a different perspective. A “mere” 8,000-10,000 Semipalmated Sandpipers were present here this morning, but likely due to the sandy beach, there were more plovers: both Black-bellied and Semipalmated.A White-rumped Sandpiper stands watch over all.

We then enjoyed hiking and casual birding in Fundy National Park, before slowly making our way back to Maine via ferries and island-hopping to Campobello Island.

Seawatching from East Quoddy Head (Great and Sooty Shearwaters, etc), a Baird’s Sandpiper on the Lubec Bar, and two wandering Great Egrets at the Baring Unit of the Moosehorn National Wildlife were among the avian highlights of our first day and a half in the area.

Thwarted by dense fog, the last morning of our vacation featured just enough clearing to allow us to get out on the water with our friend Chris from Eastport. The swirling mass of gulls feeding on the swirling waters in and around the Old Sow Whirlpool is another sight that should not be missed – luckily, this is one we enjoy almost every year. In just a couple of hours on the water, before the fog once again closed in, we saw 2000-3000 Bonaparte’s Gulls, 40 or so Red-necked Phalaropes, 4-5 Lesser Black-backed Gulls, over 100 Black-legged Kittiwakes, a lost Atlantic Puffin way up the straight, a couple of Razorbills, and this lovely adult Little Gull.

Arctic Terns

Black-legged Kittiwake

So if you haven’t gone to the head of the Bay of Fundy in August, I cannot recommend it enough. Lubec-Eastport is pretty fine this time of year as well (hence my biennial August van tour.) And yeah, we had some good poutine, too.

August is for shorebirds. Although the “fall” southbound migration started in late June (when the first non-breeders begin to turn around to mosey back south) and continues into November when Purple Sandpipers are still filling in, August is the month of peak numbers and diversity in Maine.
Most weeks from mid-July into September of recent years, I post a weekly “shorebird high counts this week” summary to my weekly “Additional Highlights This Week” summary posts to the Maine-birds listserve. While I do hope this is interesting and of value to folks, I also do it to organize my own notes, allowing me to quickly reference the peaks and valleys of particular species with ease should I need to.

I generally only post this when I have hit at least two “primary” and at least one “secondary” site each week, to make the numbers meaningful. And I prefer at least one prime high tide location (Eastern Road Trail in Scarborough Marsh, Biddeford Pool Beach/Ocean Avenue, or Popham Beach State Park in some years) with one low or mid-tide hotspot (Pine Point, Hill’s Beach/The Pool, or Popham and nearby environs).

This week was a particularly productive week for my own shorebirding, so this week’s summary is a helpful future reference for me. I also thought it was worth going into a little more detail, since it yielded a goodly 21 species (plus one subspecies) and some excellent totals.

The inclement weather of the weekend into the middle of the week (regular rain, lots of fog, easterly or southerly winds) was perfecting for “grounding” shorebirds and allowing numbers to build. I think my only surprise was my lack of a real rarity – like Western Sandpiper (although I worked pretty hard for one!)

I hit the low-tide hotspot of Pine Point on Monday with Jeannette, followed by the Eastern Road Trail at high tide later that afternoon. Jeannette and I spent the incoming to high tide at Biddeford Pool Beach on Tuesday, and on Friday, Serena Doose and I visited Popham on the incoming to high tide. Additionally, Jeannette and I checked one of the “secondary” sites, Brunswick’s Wharton Point on Tuesday and on Thursday I visited Wells Harbor before the evening’s Scott Weidensaul talk that we co-sponsored with Birds and Beans coffee and York County Audubon.

It’s always good to hit a freshwater location for diversity and high counts of pond-preferring-migrants, so when my Poplar Hut Tour Group with Maine Huts & Trails visited the Carrabassett Valley Snowfluent Ponds on Sunday, my high counts of Spotted and Solitary Sandpipers were acquired, along with my only Wilson’s Snipe of the week.

And, as if often the case during the peak of shorebird migration, there is some other “incidental sighting” of a migrant in some weird place – but not as weird as the Whimbrel (my only of the week) foraging at 4,200 feet atop Sugarloaf Mountain that Paul Doiron, Kristen Lindquist, and I observed on Sunday afternoon. While I knew they forage on mossberry during migration, such as in the bogs Downeast, I was most definitely not expecting one up here!

Therefore, with a total of 7 shorebirding locations – plus that mountaintop Whimbrel! – “this week’s shorebird high counts” scoreboard looks like this:

Furthermore, writing this blog gives me a chance to show off some of Jeannette’s photography! These are just a few of the shots she got during our visit to Scarborough on Monday.Adult Black-bellied Plover, Pine Point, 8/24.

Of course, it’s not just shorebirds that are on the move – there are plenty of passerines as well! A migrant Wilson’s Warbler and a whopping 14 Ruby-throated Hummingbirds were at Old Town House Park on Saturday morning when I visited it with my Saturday Morning Birdwalk group. My tour group to the Poplar Hut encountered mixed-species foraging flocks as we hiked to and from the hut, highlighted by an immature female Cape May Warbler in a little wave around the hut itself on Sunday morning.

Other highlights this week included 14 Wood Ducks and a bumper crop of juvenile Common Yellowthroats at Florida Lake Park (8/24), the whiter of the two Tricolored Heron x Snowy Egret hybrids (“Splotchy”) in the Rte 1/9 salt pannes in Scarborough Marsh with Jeannette on the same day and a drake White-winged Scoter off of Biddeford Pool Beach on 8/25.

While a diversity of shorebirds will continue for several more weeks (and there’s a better chance for Western, Baird’s, and Buff-breasted Sandpipers), I tend to spend less time focusing on them (and therefore not enough time at enough prime locations over the course of the week), and therefore only occasionally post summary totals. In fact, if the much-reduced numbers at Popham today are any indication, a lot of shorebirds departed with the passage of this recent cold front.

Instead, I spend most of my free mornings now at “my office,” the bridge at Sandy Point Beach, Cousin’s Island, Yarmouth, observing and obsessively counting migrant passerines in the “Morning Flight.” In fact, my first visit of the season there on Thursday morning yielded 438 migrants, including 17 species of warblers, 1 early Dickcissel, 1 Blue-gray Gnatcatcher (my 3rd-ever here), and 5 Prairie Warblers – my 2nd highest count.